3-Oxo-4-androstene-17-beta-carboxylic acid 302-97-6 4-10-00-02907 (Beilstein Handbook Reference) 4-Androsten-3-one-17beta-carboxylic acid Androst-4-ene-17-beta-carboxylic acid, 3-oxo- (7CI,8CI) Androst-4-ene-17-carboxylic acid, 3-oxo-, (17-beta)- Androst-4-ene-17-carboxylic acid, 3-oxo-, (17beta)- (9CI) BRN 3121673 Etienic acid L 552.803 NSC 226121 Testosterone 17-beta-carboxylic acid